A283414 - OEIS

%I #4 Mar 07 2017 10:48:56

%S 128,13624,1030788,90803472,7790355688,668024193788,57400505786420,

%T 4929074298340916,423301606760080340,36352878721804916656,

%U 3121940940470892045344,268108920151534075635600

%N Number of nX7 0..1 arrays with no 1 equal to more than three of its horizontal, vertical and antidiagonal neighbors.

%C Column 7 of A283415.

%H R. H. Hardin, <a href="/A283414/b283414.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

%e ..0..1..0..1..0..0..0. .0..1..0..0..0..0..1. .1..0..1..0..0..0..1

%e ..0..0..0..1..1..1..1. .0..1..0..1..0..0..0. .0..0..1..1..0..1..1

%Y Cf. A283415.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 07 2017